Medial temporal lobe heterotopia as a cause of increased hippocampal and amygdaloid MRI volumes

Craig Watson, Surl L. Nielsen, Cully Cobb, Robert Burgerman, Bill Williamson

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Magnetic resonance imaging (MRI)-based volumetric measurements of the hippocampus and amygdala are useful in detecting hippocampal and amygdaloid sclerosis in patients with temporal lobe epilepsy. In these pathological entities, volumetric MRI analysis shows the epileptogenic structures to be atrophic when compared to the normal, nonepileptogenic side. Described are 2 patients with increased hippocampal and amygdaloid volumes on the side of seizure onset due to medial temporal lobe heterotopias. Care must be taken in the interpretation of volumetric MRI data to make certain that asymmetries in hippocampal and amygdaloid measurements are due to atrophy and sclerosis of the abnormal side and not to increased tissue such as heterotopic gray matter.

Original languageEnglish (US)
Pages (from-to)231-234
Number of pages4
JournalJournal of Neuroimaging
Volume6
Issue number4
StatePublished - Oct 1996
Externally publishedYes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology
  • Neuroscience(all)
  • Radiological and Ultrasound Technology

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